2878331 has 2 divisors, whose sum is σ = 2878332. Its totient is φ = 2878330.

The previous prime is 2878313. The next prime is 2878333. The reversal of 2878331 is 1338782.

Together with previous prime (2878313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2878331 - 2¹⁰ = 2877307 is a prime.

It is a super-2 number, since 2×2878331² = 16569578691122, which contains 22 as substring.

Together with 2878333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2878333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439165 + 1439166.

It is an arithmetic number, because the mean of its divisors is an integer number (1439166).

2^2878331 is an apocalyptic number.

2878331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2878331 is an equidigital number, since it uses as much as digits as its factorization.

2878331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 2878331 is about 1696.5644697447. The cubic root of 2878331 is about 142.2482432812.

The spelling of 2878331 in words is "two million, eight hundred seventy-eight thousand, three hundred thirty-one".